Catchall for multiple effect evaporators and vacuum pans



Pi MIR QATCHALL FOR MULTIPLE EFFECT 'EVAPORATORS AND VACUUM FANS April 20, 1926. 1,581,220.

Filed August 26,- 1924' I lm/mrog, le clro I A TTORNEVS.

UNITED STATES PEDRO MIR, F SAN PEDRO DE MACORIS, DOMINICAN REPUBLIC.

OATGI'IALL FOR MULTIPLE EFFECT EVAPORATORS AND VACUUM PANS.

Application filed August 26, 1924. Serial No. 734,360.

T 0 all 00710922 tr may concern:

Fe it known that I, Pnnno him,- a citizen of the Republic of Cuba, and a resident of San Pedro de Macoris, Dominican Repulr he. have invented a new and Improved Ca tchall for Multiple Effect Evaporators and Vacuum Fans, of which the following is a description.

lify invention rclates to-a catch-all to be interposed in the vapor pipe between the vacuum pans and the condenser and the sugar factory for the purpose catching the juice or heavy by the vapors and returning to the pans. i

The gene :11 object of my invention is to provide an eflicient device for eliminating the liquor and prevent its passing to the condenser. I p p The nature of my invention and itsdisliquor carried the same back tineuishing features and advantages will clearly appear as the description proceeds.

Re ference is to be had to the accompanydrawings forming a part of this specification, it being understood that the drawings are n'ierely illustrative of one example of the invention.

Figure 1 is a side elevation of a catch-all Figure 2 is an enlarged longitudinal vertical section of the catch-all and pipe portions:

Figure 3 is a section approximately on the line 33, in fr t elevation;

Figure 4 is a transverse vertical section on tie line 4-4, Figure 2.

Tn forming and installing a catch-all in accordance with the illustrated example, an outer shell is provided which may in practice, as shown, comprise a truncated conical body having at one end an oppositely tapered truncated conical shorter portion 11, the bases of the cones being thus juxtaposed. The adjacent ends of the bodv 10 and end 11 are formed with outwardly directed annular flanges 12 secured by rivets 13 or other suitable means. The flanges 12 are shown as separate elements of angle form in cross section and riveted as at 14 to the body 10 and end 11, respectively.

An inlet pipe section 15 is secured by annular elements 16 of angle form in cross section riveted as at 17 to the pipe 15 and end 11. The flanges are outwardly directed members, the elements being fa tened by of trapping or Figure 2, the baflle being shown rivets 18. The-pipe 15 leads from the vacuum pans (not shown) in practice to conduct the vapors into the catch-all. To the smaller end of the body 10 is connected the outlet pipe 19 leading to the condenser (not shown), the connection being established by annular elements 20, 21 riveted as at 22'to the body 10 and to pipe 19 and riveted to each other as at 23.

l Vithin and spaced from the outer shell is provided a pipe 24 open at one end to the outlet pipe 19 and suitably secured to said pipe as by rivets 25; The opposite end 26 of pipe 24 is closed and disposed oblique to the axis of said pipe so that the top portion of the pipe is the longer. Said pipe 24 has perforations 27 at the top the total joint capacity of which is in practice twice the capacityof the outlet pipe 19 so as to insure a free passage of the vapors through the condenser.

In front of the closed end 26 of pipe 24 at the top portion is a baflle 28 V-shaped in cross section, so that said baflie tapers toward the front and flares rearwardly. I The baifle 28 is spaced from theadjacent end of pipe 24 so as to form a passage 29 between said baffle and the closed end 26 of said pipe. Battle 28 is formed with an outwardly di- I rected flange 30 which is securedbetween the annular angle elements 12'to be held by the rivets 13.

A discharge pipe 31 leads from the coni-' cal end 11 of the outer shell and in practice connects with the vacuum pans to conduct back the heavy liquor trapped in the shell.

In practice the vapors enter the conical end 11 of the outer she l from the inlet pipe 15 and the vapors contact with the baflie 28 and with the closed end 26 of pipe Said vapors thus are caused to pass about the upper end of pipe 24 through the passage 29 to the perforations 28 and thence to the condenser by pipe 19. The vapors entering the catch-all expand and lose velocity in the end 11 causing the heavy liquor to drop to the bottom of the outer shell, the vapors beingfurther expanded in the body 10 of the shell and any remaining juice or liquor accompanying the vapors will drop to the bottom of the body 10 and back to the end 11 and to outlet pipe 31, thence to be conducted back to the evaporating pans.

I would state in conclusion that while the illustrated example constitutes a practical embodiment of my invention, I do not limit myself strictly to the exact details herein il-.

lustrated, since, manifestly, the same can be considerably varied Without departure from the spirit of the invention as defined in the appended claims.

Having thus described my invention, I claim:

1. A catch-all to eliminate liquor from vapor passing to a condenser, said catch-all including an outer shell having a body of truncated cone shape, said body having a vapor outlet and an oppositely disposed truncated conical end constituting a vapor inlet, said shell having an outlet for the escape of liquor, an inner pipe spaced from the shell and presenting a closed end, the top portion of the pipe being perforated and the lower portion iinperforate, and a battle in front of the upper portion of said pipe, said closed end of said pipe being oblique to the axis of the pipe so that the upper portion of the pipe extends beyond the lower imperforate portion, said baffle being angular in cross section and spaced from the closed end of the pipe to afford an indir-ct passage from the inlet end of the shell to the perforations of the pipe.

2, A catch-all comprisino' a vapor eon ducting; shell enlarged intermediate its inlet and outlet, a vapor discharge pipe fitted into the outlet of the shell and extending toward the inlet thereof, said pipe having" a perforate upper portion, and a closure for its end adjacent the inlet of the shell, said closure being disposed in a plane bringing the upper portion of the pipe in closer relation to the inlet of the shell than the lower portion of said pipe.

3. A catch-all comprising a vapor conducting shell enlarged intermediate its inletand outlet, a vapor discharge pipe fitted into the outlet of the shell, .and extending toward the inlet of the shell, said pipe having a perforate upper portion, and a closure for its end adjacent the inlet of the shell, said closure being disposed in a plane bringingthe upper and perforate portion of the pipe in closer relation to the inlet of the shell than the lower portion of the pipe, and a hood-like baffle fitted over the upper portion of the last-named end of pipe, said balile being spaced from the pipe to permit circulation of vapors therebetween.

4. A catch-all, comprising a vapor conducting shell. enlarged intermediate its inlet and outlet, a vapor discharge pipe fitted into the outlet end of the shell and extending toward the inlet thereof; said pipe hav ing a perforate upper portion, and a closure for its end adjacent the inlet of the shell, said closure being disposed in a plane bringing the upper and perforate portion of pipe in closer relation to the inlet of shell than the lower portion of said pipe, a hood-like baffle fitted over the upper port-ion of the last named end of pipe said batde having a Wall disposed parallel to the end closure for pipe and spaced therefrom.

PEDRO MIR. 

